The Souls and Machines exhibition (450,000 visitors in a few months of 2008 in Madrid) will take place in 2013 in Rio de Janeiro. It gathers many artworks using numerous various techniques, dealing with the question of the soul, humanity and living appearance of machines. This documentary gives a big picture of the 2008 exhibition, including some artists and curators interviews : a 30 minute long meet up with machines, sometimes funny, sometimes puzzling, sometimes moving.